*Conversation with José Willems, granddaughter of Lode Willems, 2017.
*Jef Van den Steen, [https://www.lambic.info/Books#Geuze_.26_Kriek:_The_Secret_of_Lambic_Beer Geuze & Kriek: The Secret of Lambic Beer, 2012. pp. 80.]
* Guido Van Cauwelaert, [https://goo.gl/xCQ6ng "In search Search of a grandfather who changed Grandfather Who Changed the history History of Wambeek"], Editie Pajot, 01 Dec 2017.
* Wambeek: Bijdragen Tot de Geschiedenis / Luc Van Eeckhoudt, Luc Sergooris, Armand Timmermans – 1993 – bibliotheek Ternat siso 938.1. pp. 306-307.